Merge "ignore RemoteException from pm if shutdown is already on-going" into oc-dev

import android.os.RemoteException;

import android.os.ServiceManager;

import android.os.SystemClock;

import android.os.SystemProperties;

public class PowerCommand extends Svc.Command {

    public PowerCommand() {

                        // no confirm, wait till device is rebooted

                        pm.reboot(false, mode, true);

                    } catch (RemoteException e) {

                        System.err.println("Failed to reboot.");

                        maybeLogRemoteException("Failed to reboot.");

                    }

                    return;

                } else if ("shutdown".equals(args[1])) {

                        // no confirm, wait till device is off

                        pm.shutdown(false, null, true);

                    } catch (RemoteException e) {

                        System.err.println("Failed to shutdown.");

                        maybeLogRemoteException("Failed to shutdown.");

                    }

                    return;

                }

        }

        System.err.println(longHelp());

    }

    // Check if remote exception is benign during shutdown. Pm can be killed

    // before system server during shutdown, so remote exception can be ignored

    // if it is already in shutdown flow.

    private void maybeLogRemoteException(String msg) {

        String powerProp = SystemProperties.get("sys.powerctl");

        if (powerProp.isEmpty()) {

            System.err.println(msg);

        }

    }

}